Reciprocating engine.



fn.' WINTZER, REGIPROCATING ENGINE.-

APPLIGATIGN FILED AUG. 23, 1908.

' Patented Sept. 3, 1912*..

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`RUDOLF'WINTZER, or MILWAUKEE, Wisconsin, Assicuon To POWER AND MINING MACHINERYOMPANY, F NEW YORK, N. Y., A. CGRPOBATQN OF NEW JERSEY.

, RCXPROCA-TING ENGINE.

Lochem.

Patented sept.' s, wie',

'Application filed August 23, 1906. Serial No. 331,796.

'To all whom 'it may concern:

Be it known that I, R-Uiioifr VINTZER, a subject of the Emperor of Germany, residing at Milwaukee, in the` county of Milwaukee and State ot lllisconsin, have invented certain new and useful Improvements in Reciprocating Engines, of which the following is a specification, Vreference being had therein to the accoi'npanying drawing.

This invention relatesto improvements in reciprocating engines and has for .its object the provision of a construction 'that will obviate certain diiliculties encountered in the manufacture and operation of some engines of this type.

As my improvements are especially adapted to internal combustion engines of large size, I have shown inthe .n accompanying drawing an engine of this class.

Figure 1 is a vertical longitudinal section through :1 portion of a double-acting tandem engine embodying my improvements. Fig.

2 is a transverse section on the line 2--2 of Fig. 1. Figs. 3 and 4 are similar sections showing modified forms of the engine. Fig.

. 5 is a sectional elevation showing still anotherv form of construction. Fig. G is a transverse section on the line 6-6 of Fig. 5. Fig. 7 is a cross section through the connecting rod showing an attachment that may be used to connect' said rod and cross-head guide when dismantling the engine.

Referring to the details ot' construction,

A indicatest-he main trame of the engine, B the t'ront cylinder having the removable' heads l-l and being mounted on a supplemental bed traine section (not shown). A piston C works within cylinder B, being mounted 'upon the piston rod in any desired manner, the 'front section -D of said rod be- Y ing connected to the cross-head E while the re'ar Section D is coupled in a well known manner with the rod of the rear cylinder.

The main frame A comprises, the upstanding sidewalls A A2 which are preieiably cast hollow as shown, the latter wall A2 being provided with a central eningrib/as shown in F ig. 2. The side walls are connected by the horizontal web' or plate a-a which is supported by a longitudinal web and numerous cross webs, as

strengthshown' in Figs. 1 and 2. The forward part n' of the plate a-a sweeps downward form;l ing a concave section A3 to accommodate the crank and connecting rod. Thev web a-a/ supports .the cross-head E, which is connected by the connecting rod F to the over? hanging crank G. ot' 'the shaft H.'

The cross-head E comprises the side plates c-c andthe bottom plate or shoe c. The

cross-liead is open at the top except at .its

rear endl where the side plates c c are 'joined by the circular boss l which receives* the front end of the piston rod D. The side plates e--e are bored to receive the pin J.

L indicates the cross-head guide which consists of a plate or block withan uppet` face to receive the bottoni part c of the cross-head. This guide plate L, contrary t0 theaisualpractice, is not au integral part of tlie'fiaine'A, but is a separato part secured.

by bolts Z-Z to the cross web if-t K-K are retaining flanges bolted to the edges of the guide so as to overlap the pro- Jiectiiig side edges of the bottom plate a of. the cross head.

In the operation of double acting tandem gas engines, it is the coiiiii'ion practice to4 remove the piston ot the front cylinder for purposes of inspection, repairs, etc.,`tliri'iiigh. the tront`end of said cylinder. made it necessary in ii'iost cases to`discon neet. the connecting rod and cross-head and it also requirestliat the cross-head guid be.

disposed low enough to permit the 'cylinder headto be witlidrzin'n over it, a constructionwhich results 'ii'i a very high' cross-head'.-

This hasl `urtheriiiore the cross-head guide, :is coiii" iiionly constructed, being an integral part of the frame is exposed .during tl'ie work-of dismantling and is not infrequently seriously' damaged by the dropping of tools or"v the like by the workmen. It will be readily.;-

seen that the construction whic-lrl nrovilc' obviiitesjill these difficulties it isA only necessary, iii order to `ieii'iove the piston C- and its rod l)-D, to disconnect the' ifod from the cross-lieadand the piston rod 'of t-he rear cylinder, remove the retaining bolts loo' necting rod out of `the way as indicated. byy

dotted lines in Fig. l, all of these parts reinaining intact and none of the bearingsur-f.

guide may be made as liighas'desired, and' .the height of the cross-head bemeduced tofu() 'a ini'nin'iuni. lVhen' the parts',` are raised,

i ing tlai'iges to receive the top series of these' as shown in dotted lines, it is desirable to secure the cross-head guide to the cross-head or connectingrod and for this purpose a.

lilhen the piston of the front cylinder isy to be removed the clamp" is setclose to the liront end of the cross head guide and se? cured thereto by a. screw bolt O or the like, the adgacent end of the cross head guide-being formed with a tapped holev I l to receive said bolt.

My construction has further advantages I that pertain more especially to construction or manufacture. TWith the guide made separable, it is clear that it may be of metal of a quality suitable to its function, that is, it may bemade ot' harder ironthan the main frame. Furthermore, inv case scraping of the. guide surface necessaryor desirable,

`this maybe done more easily if the guide is a separate part than whenit is formed gral with the engine frame. Further head,vsaid cross head guide being removable more, the machining of the biggest and heaviest part of the engine, that is the' frame, is .reduced to a minimum and in addition the cross-head and guide may be assembled before the frame-is erected and the time of erection thusreduced.

In Fig. 3, l have shown the modified construction which I prefer to use lin the case 'of engines ofv extremely large size.'

Here the envine frame is formed in two parts, separable along a vertical longltudi.-

Anal plane through the longitudinal web ff',

which supports the horizontal cross Webs or plates o4-a. The two frame sections are secured` together by bolts a?, the plates clk-c being formed with upwardly projectsecuringbolts. Such a construction as this would' be diiiicult if not impossible of use if the cross head guide were an integral part oi` the iframe. With my construction, however, the diiiculty is easily overcome by providing the separable guide L2 with de this case the bottom pending ribs or flanges Z, to pass over the up-standing bolted flanges of the frame. The guide L2 is provided with retaining iangxes as in the former construction and secured to the engine frame by suitable bolts.

In FigNi, I shoa7 a further modification by which I attain the Well-known advantages incident to the bore cross-head guide. 'In surface Z2 of the guide L is turned from the longitudinal center of the cross-head, and the face Z3 of the engine frame is bored from the same spindle with `nation of a frame,

l tending throng `oscillation.

In Figs. 5 and 6, I show still another formof construction which, however, embodies many of the foregoing features of improvement. Here the cross-head E rests upon a guide beam M. `The cross plate as of the yengine frame is formed with bosses or elevated parts as all-a7, upon which the guide Ibeam is bolted. N is a stirrup bolted at vif-n 'to the cross-head and serves' to retain the lcross-heini in proper engagement with the guide.

What I claim is 1. In a,reciprocatin engine, the combia cy inder rigidly secured to said frame, a head for the cyllnder reymovable therefrom without relative movement of the cylinder and frame, a piston in the cylinder, a rod therefor extending i throughthe said removable head, ,a cran shaft, a connecting rod, a cross head secured ito the connecting rod and 'detachably sejcured to thev piston rod, and a cross head gliide detachablyl mounted on the engine ame adjacent said removable cylinder bodily with the cross head from its normal 'shaft substantiallyY as set forth.

2. ln a horizontally Areciprocating engine, the combination of a frame, a cylinder rigidly secured to the frame, a head for the cylinder removable therefrom Without rela'- tlve movement of the cylinder and frame, a.

piston in the`c linder, a rod therefor exsaid 'removable head, a crank shaft, a connecting rod, a cross head uniting the' connecting rod and piston rod and detachably secured to the'latter, and a cross head guide detachably mounted on the engine frame beneath the cross head and adjacentthe said removable cylinder head, said cross-head guide being removable bodily with the cross head from its normal position without separating the connecting rod either from the cross head or the crank shaft, sub-- stantially as set forth.

In a reciprocating engine, the'combination vof the engine frame, the connecting rod, the piston rod, the crossphead detachablysecured to the piston rod, the cross-head guide detachably secured to the engine frame, and means adapted to secure the connecting rod and the cross-head guide together When said guide is detached from the frame, substantially as set forth. Y i

4. In a reciprocating engine, the combination of the engine frame, the connecting rod, the piston rod, the, cross-head detachably secured to the piston rod, the cross-head guide detachably secured to the engine frame, and means adapted to secure the cross-head guide against longitudinal movement relati\ ff to the cross-head when said guide is detached from the frame, Substantially' as set forth.

5. In a reciprocating engine, the combination of the engine frame, the cylinder having a detachable head, the piston, the piston rod passing through said head, the cross head detachably secured to said rod, and the -,ross-head guide detachably secured to the engine framethe engagingf'surfaces of the guide and frame being cylindrical and concentric with the piston rod, substantially as and for the purpose set forth.

6. In a horizontally reciprocating engine, the combination of a frame, a cylinder rigidly secured to the frame, a head for the cylinder removable therefrom, a piston in the cylinder, a rod therefor extending through said removable head, a crank shaft,

the said removable cylinder head, the said cross head guide when in position on the frame having its upper guide surface di's`- posed above the horizontall plane of the lower side of the adjacent cylinder head,

and said cylinder head being removable,

when the cross head guide is detached, without relative movement oit' the cylinder and frame and while the piston and its rod are in normal position in the cylinder', substantially as set forth.

In testimony whereof I affix my signature, in presence of two witnesses.

lnUDoLF wINTzEa Witnesses L. F. SNYDER, F. G. BECKER. 

